Txhawm rau pleev xim rau cov nplooj ntawv stainless hlau kom zoo, kev npaj kom zoo thiab cov ntaub ntawv tshwj xeeb yog qhov tseem ceeb vim tias cov hlau tsis muaj qhov ntxeem tau, corrosion-resistant nto. Hauv qab no yog cov lus qhia dav dav raws li kev coj ua hauv kev lag luam:

1. Kev Npaj Nto (Cov kauj ruam tseem ceeb tshaj plaws)

• Degreasing: Tshem cov roj, av, lossis cov khoom seem uas siv cov kuab tshuaj xws li acetone, isopropyl cawv, lossis cov tshuaj ntxuav hlau tshwj xeeb. Xyuas kom qhov chaw qhuav tag tom qab ntawd.

• Abrasion: Roughen saum npoo los txhim kho xim adhesion:

  • Mechanically abrade nrog 120-240 grit sandpaper los yog siv sandblasting (tshwj xeeb tshaj yog siv tau rau thaj chaw loj). Qhov no tsim "profile" rau cov xim kom tuav.

  • Rau polished / daim iav tiav (piv txwv li, 8K / 12K), aggressive abrasion yog qhov tseem ceeb

• Kev kho xeb: Yog tias muaj xeb (piv txwv li, hauv welds lossis khawb), tshem cov flakes xoob nrog cov txhuam hlau thiab siv cov roj los tiv thaiv xeb lossis phosphoric acid-based converters kom ruaj khov ntawm qhov chaw.
• Ntxuav cov seem: So cov plua plav lossis cov khoom abrasive nrog ib daim ntaub tack lossis ib daim ntaub ntub dej.

2. Priming

• Siv cov hlau tshwj xeeb primer:

  • Self-etching primers: Chemically bond rau stainless hlau (xws li, epoxy los yog zinc-nplua nuj formulations).

  • Anti-corrosive primers: Rau sab nraum zoov / hnyav ib puag ncig, xav txog primers nrog xeb-inhibiting zog (xws li, linseed roj-raws li primers rau enhanced dej kuj).

• Siv rau hauv nyias, txawm lub tsho loj. Cia kom qhuav tag nrho raws li cov chaw tsim khoom qhia (feem ntau 1-24 teev).

3. Daim ntawv thov xim

• Hom xim:

  • Cov xim pleev xim (Aerosol): Zoo tagnrho rau kev npog ntawm cov ntawv tiaj tus. Siv acrylic, polyurethane, los yog enamel formulations sau rau hlau. Co cov kaus poom rau 2+ feeb ua ntej siv.

  • Txhuam / Roller: Siv cov xim hlau nplaum (xws li alkyd lossis epoxy). Zam cov tsho tuab kom tiv thaiv cov drips.

  • Cov Kev Xaiv Tshwj Xeeb:

    • Linseed roj pleev xim: Zoo heev rau kev ua haujlwm sab nraum zoov; yuav tsum tau ib tug anti-xeb roj undercoat.

    • Hmoov txheej: Kev cob qhia qhov cub-kho tiav rau kev ua haujlwm siab (tsis yog DIY-phooj ywg).

• Cov txheej txheem:

  • Tuav cov kaus poom 20-30 cm deb.

  • Siv 2-3 lub tsho nyias nyias, tos 5-10 feeb ntawm cov tsho tiv no kom tsis txhob sagging.

  • Ua kom muaj qhov sib npaug sib npaug (50%) rau kev tiv thaiv ib puag ncig.

4. Kho & Sealing

Tso cai rau cov xim kho kom zoo (feem ntau 24-72 teev) ua ntej tuav.

Rau cov chaw hnav khaub ncaws siab, siv lub tsho polyurethane ntshiab los txhim kho khawb / UV tiv thaiv.

Tom qab kev kho mob: Tshem tawm overspray tam sim ntawd nrog cov kuab tshuaj zoo li cov ntxhia dab.

5. Kev daws teeb meem & Kev Tu

• Tej Teeb Meem:

  • Peeling / Blistering: Ua los ntawm kev tu tsis txaus lossis hla cov primer.

  • Fisheyes: tshwm sim los ntawm cov kab mob saum npoo av; rov ntxuav thiab xuab zeb cuam tshuam thaj chaw.

  • Thaum tshav kub kub Discoloration: Yog tias vuam tshwm sim tom qab pleev xim, siv tooj liab / txhuas cov cua sov kom txo qis kev puas tsuaj; polish tawm cov cim nrog pickling muab tshuaj txhuam.

• Kev Kho: Rov siv cov roj los tiv thaiv xeb lossis pleev xim rau txhua 5-10 xyoo rau sab nraum zoov 3.

Alternatives rau Painting

Electroplating: Deposits chromium, zinc, lossis nickel rau hardness / corrosion kuj.

Thermal Spraying: HVOF / plasma coatings rau hnyav hnav tsis kam (kev lag luam siv).

Kho kom zoo nkauj tiav: Pre-coloured stainless hlau los xij (xws li, daim iav kub, txhuam) tshem tawm cov kev xav tau tha xim.

Kev Ceeb Toom

Ua haujlwm nyob rau hauv ib qho chaw ventilated; siv lub tshuab ua pa rau cov tshuaj tsuag.

Khaws cov xim qis dua 45 ° C thiab pov tseg cov rags kom zoo (linseed-roj-soaked cov ntaub ntawv tuaj yeem ua rau nws tus kheej).

Pro Tip: Rau cov ntawv thov tseem ceeb (xws li, tsheb lossis kev tsim vaj tsev), sim koj cov txheej txheem prep / xim ntawm ib qho me me ua ntej. Adhesion tsis ua hauj lwm ntawm stainless hlau yog yuav luag ib txwm vim tsis txaus deg npaj!